Preparation of water-soluble magnetic nanoparticles with controllable silica coating

Yaping Zhang; Bin Zhen; Hansheng Li; Yaqing Feng

doi:10.1016/j.cjche.2017.05.017

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Preparation of water-soluble magnetic nanoparticles with controllable silica coating

Materials and Product Engineering | Updated：2026-01-06

- Preparation of water-soluble magnetic nanoparticles with controllable silica coating
- Chinese Journal of Chemical Engineering Vol. 26, Issue 1, Pages: 213-217(2018)
- Affiliations：
  
  1. 2 School of Chemical Engineering and the Environment, Beijing Institute of Technology,Beijing,China,100081
  2. 3 College of Chemistry and Chemical Engineering, Tianjin University of Technology,Tianjin,China,300384
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2017.05.017
  CLC：
- Published：2018
- Accepted：
Scan QR Code
Yaping Zhang, Bin Zhen, Hansheng Li, Yaqing Feng. Preparation of water-soluble magnetic nanoparticles with controllable silica coating[J]. Chin.J.Chem.Eng., 2018, 26(1): 213-217.
DOI：

Yaping Zhang, Bin Zhen, Hansheng Li, Yaqing Feng. Preparation of water-soluble magnetic nanoparticles with controllable silica coating[J]. Chin.J.Chem.Eng., 2018, 26(1): 213-217. DOI： 10.1016/j.cjche.2017.05.017.

摘要

Abstract

This work provides a general method for preparing monodisperse

water-soluble and paramagnetic magnetic nanoparticles which are easy to be modified. Firstly

magnetic silica with core-shell structure was prepared according to a previous work. Then

the magnetic silica was treated with alkali solution to afford magnetic nanoparticles. With the increase of calcination temperature for the preparation of magnetic silica

the crystallinity and the magnetic responsibility of magnetic silica strengthened

meanwhile

the corresponding magnetic nanoparticles kept monodisperse without any aggregation. The magnetic nanoparticles are comprised of cobalt ferrite and a silica coating. The silica coating on the cobalt ferrite facilitates the magnetic nanoparticles well-dissolved and monodisperse in water

and easily modified.

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